12555013 has 4 divisors (see below), whose sum is σ = 12562668. Its totient is φ = 12547360.

The previous prime is 12554981. The next prime is 12555041. The reversal of 12555013 is 31055521.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1940449 + 10614564 = 1393^2 + 3258^2 .

It is a cyclic number.

It is not a de Polignac number, because 12555013 - 2⁵ = 12554981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12555043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256 + ... + 5017.

It is an arithmetic number, because the mean of its divisors is an integer number (3140667).

Almost surely, 2^12555013 is an apocalyptic number.

It is an amenable number.

12555013 is a deficient number, since it is larger than the sum of its proper divisors (7655).

12555013 is an equidigital number, since it uses as much as digits as its factorization.

12555013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7654.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 12555013 is about 3543.3053777511. The cubic root of 12555013 is about 232.4194070689.

It can be divided in two parts, 12 and 555013, that added together give a square (555025 = 745²).

The spelling of 12555013 in words is "twelve million, five hundred fifty-five thousand, thirteen".